1.配置网络连接
配置ppp.conf
由于是ADSL上网，配置文件是 /etc/ppp下的 ppp.conf，在 /etc/ppp 下可能已经有了 ppp.conf 也可能只有 ppp.conf.sample ,总之,我放弃使用现有的ppp.conf 从ppp.conf.sample新建一个.你可以这样做:
# rm ppp.conf (删除ppp.conf , 如果有的话)
# cp ppp.conf.sample ppp.conf
# ee ppp.conf (随自己喜好,使用 ee 或 vi )
这里把我的ppp.conf 附上,以此为范本.
#################################################################
# PPP Sample Configuration File
# Originally written by Toshiharu OHNO
# Simplified 5/14/1999 by
#
# See /usr/share/examples/ppp/ for some examples
#
# $FreeBSD: src/etc/ppp/ppp.conf,v 1.2.2.5 2001/07/13 10:55:23 brian Exp $
#################################################################
default:
set log Phase Chat LCP IPCP CCP tun command
#ident user-ppp VERSION (built COMPILATIONDATE)
# Ensure that "device" references the correct serial port
# for your modem. (cuaa0 = COM1, cuaa1 = COM2)
#
set device PPPoE:rl0
set speed sync
set mru 1492
set mtu 1492
set ctsrts off
set timeout 30 # 3 minute idle timer (the default)
disable lqr
deny lqr
add default HISADDR
enable dns # request DNS info (for resolv.conf)
pppoe: # 注意:这里的pppoe是你的ISP名,要比下面的set语句多出一点(一个空格).
set authname user(把这里的user换成你的ADSL用户名)
set authkey password (把这里的password换成你的ADSL密码)
set dial
set login
set ifaddr 10.0.0.1/0 10.0.0.2/0
nat enable yes
连接网络
配置好了ppp.conf，你就成功了一半，接下来的就是输入命令、连接网络喽！
#ppp –ddial pppoe
之后看看连接状态。
#ifconfig 显示如下:
rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=8<VLAN_MTU>
inet6 fe80::5278:4cff:fe66:73e8%rl0 prefixlen 64 scopeid 0x1
inet 192.168.0.3 netmask 0xffffff00 broadcast 192.168.0.255
ether 50:78:4c:66:73:e8
media: Ethernet autoselect (10baseT/UTP)
status: active
plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet 127.0.0.1 netmask 0xff000000
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1492
inet 60.216.182.145 --> 60.216.182.1 netmask 0xffffffff
Opened by PID 322
inet后的数字部分就是：ISP分的IP地址 -> ISP的DNS服务器的IP. 这样你就上了网啦！
2.配置rc.conf使ADSL开机上网
让我们来配置 /etc/rc.conf 就填上这几句：
ifconfig_lnc0="192.168.0.3"
defaultrouter="192.168.0.3"
inetd_enable="yes"
gateway_enable="yes"
ppp_enable="yes"
ppp_mode="ddial"
ppp_nat="yes"
ppp_profile="pppoe"
named_enable="yes"
这样开机就会拔号上网了.
3.共享
接着在其它机子用IP:192.168.0.** 只要不和上面的192.168.0.3一样.然后把网关设成192.168.0.3 ,就可以共享上网了.